The best part is that it supports multiple file formats like PDF, Word etc. It also has an option of batch processing of multiple files with single click. I am using this software for annotation purpose and so far everything looks good. I have not faced any issue while using this software. This is one of the best image editing software available in market. We use this software for annotation purpose. We can easily create different annotations like text, diagrams, sketches etc.It has many other features for editing purposes too like rotate/flip, crop, resize, brightness, contrast etc.